Arid Zone Research ›› 2023, Vol. 40 ›› Issue (6): 971-978.doi: 10.13866/j.azr.2023.06.12

• Plant Ecology • Previous Articles     Next Articles

Population dynamics of natural Haloxylon ammodendron in the eastern margin of Badain Jaran Desert

MAO Mao1(),MENG Zhongju1(),DANG Xiaohong1,ZHAO Feiyan1,WANG Dehui2,CHAI Xiangxian3   

  1. 1. College of Desert Governance, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
    2. Department of Agriculture and Animal Husbandry, Inner Mongolia Xing’ an Vocational and Technical College, Xing’ an League 137400, Inner Mongolia, China
    3. Industry and Technology Bureau of Luanjingtan Ecological Migration Demonstration Zone, Alxa League 750312, Inner Mongolia, China
  • Received:2022-09-27 Revised:2022-11-29 Online:2023-06-15 Published:2023-06-21

Abstract:

The purpose of this study was to analyze the population structure and dynamic characteristics of the natural Haloxylon ammodendron forest in Badain Jaran Desert, revealing the renewal process and future development trend of this Haloxylon species. This work also involved preparation of a static life table, survival rate curves, mortality and disappearing rate curves, population dynamic change index, and a time-series forecasting model. The results showed that: (1) The age structure of this species belongs to the “J” type, with abundant seedlings. (2) The survival curve belongs to the Deevey-II type, and the disappearance and mortality rates have similar trends, both with maximum and minimum values at ages X VII, and IV. (3) The number dynamic change index is greater than 0, indicating that this species has a growing population. (4) The results of time-series prediction analysis showed that the number of individuals will increase. Studies have shown that the natural H. ammodendron population is a stable growing population. In view of the low survival rate of young in this population, it is recommended to manually intervene in the growth of H. ammodendron seedlings to improve their survival rate.

Key words: Haloxylon ammodendron, population, population dynamics, time sequence, Badain Jaran Desert